https://bugs.freedesktop.org/show_bug.cgi?id=28856
Summary: Laptop screen turns black with KMS, external screen stays on Product: DRI Version: XOrg CVS Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: aneaspam@gmx.de
Created an attachment (id=36638) --> (https://bugs.freedesktop.org/attachment.cgi?id=36638) dmesg output
After booting with KMS enabled my laptop screen turns black as soon as X starts, while my external screen continues to work. The desktop still expands to both screens. If I disconnect the external monitor everything runs smooth, I can even connect the monitor afterwars and enable it through xrandr. But the laptop screen turns black again when I run glxgears through Gallium. I can turn the black screen off and on through xrandr, but it stays black.
With KMS disabled everything works fine. I rebuild my graphic stack from git but the problem remained. The error first occured months ago, so I disabled KMS. Today I tried it again and the error is still there.
Archlinux Linux 2.6.34 dri2proto, glproto, libdrm, xf86-video-ati, libgl + mesa + ati-dri from git 2010-06-30 Ati Radeon Mobility x1700